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- a list that includes every situation (state) in connection to one specific action (output) that is carried out as soon as the corresponding state arrives | - a list that includes every situation (state) in connection to one specific action (output) that is carried out as soon as the corresponding state arrives | ||
—> looking for food / move around, eating / stop, .. | —> looking for food / move around, eating / stop, .. | ||
==Example: developing the control mechanism of an autonomous vacuum cleaner== | |||
All of the above will become much clearer if we look at an practical example of an autonomous vacuum cleaner robot. | |||
Step by step we will think of everything the robot has to do, put it in the right order and draw an appropriate diagram. | |||
1) Turned on | |||
The robot stands still and waits for further instructions. | |||
It is now in standby mode. | |||
—— BILD —— | |||
2) „On / Off“ - button pushed | |||
The robot starts to clean the room. | |||
It moves forward and activates the air pump. | |||
— BILD — | |||
3) Approaching a wall | |||
The robot would bump into the next wall if it would only be able to move forward. | |||
It therefore needs a function that recognizes walls and makes the robot turn around. | |||
— BILD — | |||
4) Turning around | |||
So far the robot turns randomly in any direction. | |||
We have to define a parameter that tells the robot if it turned enough in order to continue cleaning. | |||
This parameter can be a time delay, a certain amount of wheel revolutions or the value of a (distance, ..) sensor. | |||
— BILD — | |||
5) Turned off | |||
The final missing part is the off-button. | |||
— BILD — | |||